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Old 06-04-2012, 05:21 PM
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How hot is too hot?

I just bought an 06 F250 and coming home from work today, ambient temp was 95, my eot was at one point 211 and ect was 208. Are these numbers normal for short durations or is it okay for long trips? The difference between the 2 has been 3-7 degrees. Also is it normal for the FICM voltage to jump from 46.5 to 48 in .5 increments?
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Old 06-04-2012, 05:45 PM
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i dont believe the FiCM volts should jump like that...do you have any bad FICM symptoms? my truck (04) runs anywhere from 180-200 ECT even as high as 220 just cruising especially when its hot out or my right foot gets itchy but once my fan gets going it drops back to 180. i've never checked my eot's not sure how on the SCT livewire or if its even possible.
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Old 06-04-2012, 05:47 PM
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Not sure what bad ficm symptoms would be I'm new?
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Old 06-04-2012, 05:55 PM
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when its cold (not completely warmed up) it will shift hard was the main symptom of my dads, my grandpa's took forever to start and ran rough, mine did both. search bad ficm symptoms online i know theres more. if you need to replace it call IDP they treated me great i got my first one from elite diesel and it took them 3 months to refund my core with several calls pluse it took 3 weeks to even send me the part. IDP shipped it right away and i had my core charge a few days after they got it
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Old 06-04-2012, 05:58 PM
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Truck starts easy doesn't run rough when cold...I always let it warm up before driving it
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Old 06-04-2012, 06:06 PM
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so while i was sitting here i did some research. as long as the voltage stays above 45-46 volts the FICM is fine...how did you measure your voltage and EOT's?
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Old 06-04-2012, 06:13 PM
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I have an edge cts. I read that as well I just thought the fact that it changes in .5 increments may be strange...it isn't constantly jumping around just periodically...the voltage also doesn't change when I start it so I guess that's good
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Old 06-04-2012, 06:21 PM
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Quote:
Originally Posted by Metalfab View Post
I have an edge cts. I read that as well I just thought the fact that it changes in .5 increments may be strange...it isn't constantly jumping around just periodically...the voltage also doesn't change when I start it so I guess that's good
it probably only reads in .5 incraments(i'm not positive) my SCT livewire reads ECT's by even numbers like 180 182
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Old 06-04-2012, 06:34 PM
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Mine jumps from 47.5 to 48.5 constantly on a day like today where the ambient temp was 102 my ECT is ~ 200-201 and my ECT runs about 210-212
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Old 06-04-2012, 06:35 PM
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oops! meant EOT 210-212
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